Question

Which of the following is an example of a complex number that is not in the set of real numbers?
O-7
O 2+ V3
O 4 + 9
Ол

Answer 1

Answer:

C) 4+9i

Step-by-step explanation:

Answer 2

A complex number is represented as: $a + bi$.

Where:  $a \to$ Real part and      

$bi \to$ Imaginary part

From the given numbers, $4 + 9i$ is a complex number

The given numbers are:

$-7$

$2 + \sqrt 3$

$4 + 9i$

$\pi$

By comparing $a + bi$ with the given numbers;

We can conclude that: $4 + 9i$ is a complex number

Because it has a real part (4) and an imaginary part (9i)

Read more about complex numbers at:

https://brainly.com/question/19007885